class_docstr: Base Graph Model
class_docstr_tok: ["Base","Graph","Model"]
docstr: neighbor aggregation
docstr_tok: ["neighbor","aggregation"]
code: def neighbor_aggregator(self, node_repr):
      """neighbor aggregation"""
      return node_repr
  
file_path: PGL/ogb_examples/linkproppred/ogbl-ppa/model.py
imports: import os
  import re
  import time
  from random import random
  from functools import reduce, partial
  import numpy
  import multiprocessing
  import paddle
  import paddle.fluid
  import paddle.fluid.layers
  from pgl.graph_wrapper import GraphWrapper
  from pgl.layers.conv import gcn, gat
label_desc: Use image node_id 5 for calling the BaseGraph obj's underlying member method code with example usage: obj.neighbor_aggregator(node_repr) and returns: node_repr